78749-98-1Relevant articles and documents
Microwave-assisted hydrogen peroxide-mediated synthesis of benzoxazoles and related heterocycles via cyclodesulfurization
Kadagathur, Manasa,Sigalapalli, Dilep Kumar,Patra, Sandip,Tangellamudi, Neelima D.
supporting information, p. 2213 - 2224 (2021/05/26)
A novel approach has been developed to construct benzoxazoles and similar N- and S-containing heterocycles from their corresponding isothiocyanates and o-substituted anilines via cyclodesulfurization. The reaction was found to proceed via in situ formatio
One-pot reaction for the synthesis of N-substituted 2-aminobenzoxazoles using triphenylbismuth dichloride as cyclodesulfurization reagent
Murata, Yuki,Matsumoto, Natsuho,Miyata, Maya,Kitamura, Yuki,Kakusawa, Naoki,Matsumura, Mio,Yasuike, Shuji
, p. 18 - 23 (2018/02/09)
The treatment of various 2-aminophenols with isothiocyanates afforded thioureas, which were reacted in situ with triphenylbismuth dichloride in the presence of triethylamine to give the expected N-substituted benzoxazol-2-amines in good to excellent yields. Triphenylbismuth dichloride promoted the successful cyclodesulfurization of thioureas with short reaction times under mild reaction conditions. This reaction is the first example of the synthesis of heterocyclic rings using a pentavalent organobismuth reagent.
SYNTHESIS AND IR SPECTRA OF SOME 2-AMINOBENZOXAZOLE DERIVATIVES
Simov, D.,Davidkov, K.
, p. 437 - 440 (2007/10/02)
A large number of 5-nitro-, 6-nitro-, 5-chloro-, and 6-bromo-2-aminobenzoxazoles were synthesized by the reaction of benzoxazoline-2-thiones with various amines.It was shown by IR spectroscopy that all of the compounds exist in the amino form in solution,
